Improvement in blow-pipes



W. T. GILLINDER.

BLOW PIPE FOR GLASS BLOWERS.

Patented Dec. 5, 1865.

/ lll'lll UNITED. STATES PATENT OFFICE.

WILLIAM 'I. GILLIN DER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND EDWIN BENNETT, OF SAME PLACE.

IMPROVEMENT IN BLOW-QPIPES.

Specification forming part of Letters Patent No. 51,386, dated December 5, 1865.

To all whom it may concern:

Be it known that I, WILLIAM T. GILLINDER, of the city of Philadelphia, in the State of Pennsylvania, have invented anew and useful Improvementin Blow-Pipes for Glass-Blowers; and I do hereby declare that thefollowing is a full, clear, and exact description of the con struction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a geometrical representation of the said improved blow-pipe; and Fig. 2 a

, longitudinal half'of Fig. 1, showing the interior The object of my improvement is to enable the glass-blower to shape or form such vessels with their handles or other similar projections attached or simultaneously formed with the vessel in the mold, and thus to facilitate in the manufacture, and to produce more uniform and better finished articles. v

The nature of myinvention consists, substantially as hereinafter described, in a perforated plunger with a blow-pipe attached, and also in the employment of the usual snap in combination with the said perforated plungerfand blowpipe.

In the drawings, A is the perforated plunger, B the blow-pipe, and O D the snap.

Theplunger A is made of the same diameter as the solid plunger, which forms a part of the particular mold in which the melted glass receives its first form, and is also slightly tapered in the same manner. It is perforated or bored longitudinally through its center, and in this hole one end of the blow-pipe B is fixed (see Fig. 2) so that the mouthor open end of the vessel'froin the mold will fit over the plunger A in such a manner that the operator can safely expose it to the heat of the furnace and ill in expand it by blowing into it through the said pipe A. See the faint lines-in the figures.)

For the purpose of more securely and safely fixing the vessel upon the plunger A, the snap O D is applied. It consists of a fiat disk, 0',

which is perforated in its center, and thereby fit the bore of the enlarged end of the tube d,

and thus present a shoulder, b, which will abut against the lower end of the spring 0. (See Fig. 2.) Near the upper end of the tube d there is a slot (not seen in the drawings) made; about an inch or more long, through its sides,

and in this slot a small pin, which is fixed across in the blow-pipe, operatesso as to keep the shoulder 1) thereof within the larger end of the tube d and in an abutting contact with the lower end of the spring e, and also so as to allow the blow-pipe B to be moved upward through the spring for the length of the said slot in the tube d on the operators pressing it against the said spring 0 for the purpose.

. To two opposite edges of the disk 0 two levers,

g g, are pivoted, and attached respectively to their upper ends there are two thin plates, 9

g, which are curved so as to he concentric with.

the plunger A, and also so as to leave a thin annular space, '5, between them and the said plunger when the snap is closed, as seen in Fig. 2. The lower ends of the levers g g are connected to the tube d by means of the re spective pivoted bars or shackles h h and the sliding-collar h, as seen in the same figure. At one side of the plunger A the edges of the two curved plates g 9 meet, while at the opposite side their edges ure recessed or cut away so as to leave sufficient' space for the handle of the glass vessel, when the latter is on the plunger A, to project from between them. (See Fig. 1, and also the dotted lines cg in Fig. 2.)

Operatiom' The lower end of the blow-pipe,

having the snap (l D applied, is rested upon the floor or other unyielding support in the furnace-room, when the operator presses the g g to open outward and downward, as indicated by the dotted lines in Fig. 2. He then places the month of the glass vessel to be enlarged over the plunger A so that its handle will project through the opening which will be left between the recessed portions of the plates g y when the latter are closed around theplunger A, as seen in the drawings.

The closing is efi'ected automatically simply by lifting the whole implement free from the.

ditiously, uniformly, and perfectly expanded and finished with the handles on' as parts of the same than by the old modes, which required the handles to be formed and attached after the body of the vessel had been finished,

as before mentioned.

-Having thus fully described my improved blow-pipe, what I claim as new therein, and desireto secure by Letters Patent, is-

1. A perforated plunger, A, having a blowpipe, B, attached thereto, the same being constructed and united together so as to operate substantially as and for the purpose described.

2. In combination with the subject-matter of the above claim, the employment of the snap O D, constructed and applied so as to operate substantially as and for the purpose described.

WILLIAM T. GILLTNDER Witnesses:

BENJ. MORISON, J. WHARTON. 

